The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 11, 2014

Filed:

Jun. 15, 2012
Applicants:

Bruce Kwan, Sunnyvale, CA (US);

Brad Matthews, San Jose, CA (US);

Puneet Agarwal, Cupertino, CA (US);

Inventors:

Bruce Kwan, Sunnyvale, CA (US);

Brad Matthews, San Jose, CA (US);

Puneet Agarwal, Cupertino, CA (US);

Assignee:

Broadcom Corporation, Irvine, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G08C 15/00 (2006.01); H04L 12/28 (2006.01); H04L 12/54 (2013.01); G06F 15/16 (2006.01); G06F 15/173 (2006.01); G06F 3/00 (2006.01); G06F 5/00 (2006.01); H04L 12/801 (2013.01); H04L 12/861 (2013.01);
U.S. Cl.
CPC ...
H04L 47/10 (2013.01); H04L 49/90 (2013.01);
Abstract

The systems and methods described herein allow for the scaling of output-buffered switches by decoupling the data path from the control path. Some embodiment of the invention include a switch with a memory management unit (MMU), in which the MMU enqueues data packets to an egress queue at a rate that is less than the maximum ingress rate of the switch. Other embodiments include switches that employ pre-enqueue work queues, with an arbiter that selects a data packet for forwarding from one of the pre-enqueue work queues to an egress queue.


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